70 #define nibble2char(s) (((s & ~nACK) >> 3) | (~s & nBUSY) >> 4)
373 	if ((error = do_peripheral_wait(bus, nACK | nBUSY, 0))) {  in byte_peripheral_outbyte()
449 	/* Event 9 - peripheral set nAck low */  in byte_1284_inbyte()
450 	if ((error = do_1284_wait(bus, nACK, 0))) {  in byte_1284_inbyte()
462 	if ((error = do_1284_wait(bus, nACK, nACK))) {  in byte_1284_inbyte()
493 		/* Event 9 - peripheral set nAck low */  in nibble_1284_inbyte()
494 		if ((error = do_1284_wait(bus, nACK, 0))) {  in nibble_1284_inbyte()
506 		if ((error = do_1284_wait(bus, nACK, nACK))) {  in nibble_1284_inbyte()
708 	if (ppb_poll_bus(bus, 40, nACK | SELECT | nFAULT,  in ppb_1284_negociate()
716 	if (do_1284_wait(bus, nACK | PERROR | SELECT | nFAULT,  in ppb_1284_negociate()
732 	if (do_1284_wait(bus, nACK, nACK)) {  in ppb_1284_negociate()
738 	/* Event 7 - querying result consider nACK not to misunderstand  in ppb_1284_negociate()
746 		if (do_1284_wait(bus, nACK | SELECT, nACK)) {  in ppb_1284_negociate()
752 		if (do_1284_wait(bus, nACK | SELECT, SELECT | nACK)) {  in ppb_1284_negociate()
772 		if (do_1284_wait(bus, nACK | SELECT | nBUSY,  in ppb_1284_negociate()
773 					nACK | SELECT | nBUSY)) {  in ppb_1284_negociate()
779 		if (do_1284_wait(bus, nACK | SELECT | PERROR | nBUSY,  in ppb_1284_negociate()
780 					nACK | SELECT | PERROR | nBUSY)) {  in ppb_1284_negociate()
835 	if (do_1284_wait(bus, nACK | nBUSY | nFAULT, nFAULT)) {  in ppb_1284_terminate()
845 	/* Event 27 - peripheral set nAck high */  in ppb_1284_terminate()
846 	if (do_1284_wait(bus, nACK, nACK)) {  in ppb_1284_terminate()